https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82827
            Bug ID: 82827
           Summary: [8 regression] i386/pr82002-2a.c fail
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: andrey.y.guskov at intel dot com
  Target Milestone: ---

r254284 triggers this:

/source/gcc/testsuite/gcc.target/i386/pr82002-2a.c:14:1: internal compiler
error: in extract_insn, at recog.c:2305
0x5b709a _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /source/gcc/rtl-error.c:108
0x5b70b8 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        /source/gcc/rtl-error.c:116
0xc07c54 extract_insn(rtx_insn*)
        /source/gcc/recog.c:2305
0xc08d48 extract_constrain_insn(rtx_insn*)
        /source/gcc/recog.c:2205
0xc1275f copyprop_hardreg_forward_1
        /source/gcc/regcprop.c:790
0xc1342f execute
        /source/gcc/regcprop.c:1296
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
compiler exited with status 1
XFAIL: gcc.target/i386/pr82002-2a.c (internal compiler error)
FAIL: gcc.target/i386/pr82002-2a.c (test for excess errors)

Option set:
-with-system-zlib --with-demangler-in-ld --with-fpmath=sse --enable-shared
--enable-host-shared --enable-clocale=gnu --enable-cloog-backend=isl
--enable-languages=c,c++,fortran,jit,lto -with-arch=haswell --with-cpu=haswell

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